Magnetic traction.



MAGNETIC TRACTION.

' (Application filed June 19, 19011 (No Model.)

UNITED STAT S PATENT OFFICE.

SABIN A. GIBBS, OF TACOMA, \VASHINGTON.

MAGNETIC TRACTION.

SPECIFICATION forming part of Letters PatentNo. 695,383, dated March 11,1902.

' Application filed June 19,1901.

To all whom it nmy concern:

Be it knownthat I, SABIN A. G1BBs,a citizen of the United States, residing at Tacoma, in the county of Pierce and State of Washington, have invented certain new and useful Improvements in Magnetic Tractions; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is in the nature of a magnetic traction device, the objectof the invention being to provide engine-wheels or other vehicles adapted to travel upon rails with means for exertingamagneticinfluence upon a rail or a number of rails, either the rails upon which the vehicle travels or a rail or rails especially provided for receiving the magnetic influence. V

With this object in view the invention con-. sists in the improved construction, combination, and arrangements of parts, as will be hereinafter more fully described and claimed.

In the accompanying drawing, which shows sufficient of an ordinary locomotive and the tracks upon which it travels to illustrate one application of my invention, only those parts which are necessary in the embodiment of my invention will be indicated by letters of reference. v

Referring to the drawing by letters of reference, A indicates a portion of the engineframe; B, the driving-Wheels; C, the rails, and D electromagnets suspended from the frame of an engine by being hinged at E to. brackets F, secured to the frame. 7 I have illustrated in this instance four electromagnets, but desire it to be distinctly understood that any suitable number may be used, and I have illustrated them as hinged at E, which construction would facilitate their being swung inwardly transversely of engine-frame A in a vertical plane and out of their operative position,the said hinges being so constructed that said magnets D cannot have lateral movement longitudina'lly'ofthe engine-frame.

The especial object desired to be attained bythis invention is in effect to put more weight upon the drivers, which will cause them to adhere with greater force to the rail without any increase in the weight of the engine, except the slight actual weight of the magnets Serial No. 65,191. (No model.)

fluence of the magnets'(which will, as illustrated, be hung at a slight distance above the rails and not in contact therewith) will be exerted upon the rails and besides increasing the attraction thereon will tend to prevent either side of the engine or car from rising off the'rail, thus preventing thecars or engine from tipping over or the wheels from jumping the track, thus making it possible to run the trains at a muchgreater speed than they could be run without the magnetic traction.

I desire it to be further understood that I do not confine myself to any particular style of construction of magnets, and, as before stated, the application of the magnets may be made to the regular rails upon which the car or engine runs or upon any number of rails provided for this especial purpose.

When my invention isapplied to motors driven by other power than electric, the magnet or magnets maybe energized by the running power itself through the medium of a suitable dynamo or by a small engine espe- 'cially provided for running such dynamo.

When the invention is used upon electric cars, the current for energizing the magnets may be drawn from that which supplies the car or engine with motor power.

tric magnets may be denergized at any time by directing the circuit by means of any suit able form of switch between them and the source from which the current is taken.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, ist themselves, whereby it'maybe possible to de- A 8 5 It will of course be understood that the elec- 2. In a railway-car, the combination with a suitable frame, of brackets secured thereto, hinges carried by said brackets, and electromagnets carried by said hinges With their poles a short distance above the traction-surface of said car, the said hinges being so constructed as to permit said magnets to be swung inward, transversely ofsaid car, in a vertical plane and out of operative position, but

preventing lateral movement thereof, substantially as described. 10

In testimony whereof I hereunto affix my signature in presence of two witnesses.

' SABIN A. GIBBS. W'itn esses FRANK J. MILLER, J. II. MCDANIELS. 

